Prevent plugins from changing mouse cursor during middle-click autoscroll.

third_party/WebKit/Source/core/exported/WebViewTest.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 41 matching lines @@
 #include "core/frame/Settings.h"
 #include "core/frame/VisualViewport.h"
 #include "core/frame/WebLocalFrameBase.h"
 #include "core/html/HTMLIFrameElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/html/HTMLTextAreaElement.h"
 #include "core/inspector/DevToolsEmulator.h"
 #include "core/layout/api/LayoutViewItem.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoadRequest.h"
+#include "core/page/ChromeClient.h"
 #include "core/page/Page.h"
 #include "core/page/PrintContext.h"
 #include "core/page/ScopedPageSuspender.h"
 #include "core/paint/PaintLayer.h"
 #include "core/paint/PaintLayerPainter.h"
 #include "core/timing/DOMWindowPerformance.h"
 #include "core/timing/Performance.h"
 #include "platform/KeyboardCodes.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/geometry/IntSize.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/graphics/paint/PaintRecordBuilder.h"
 #include "platform/scroll/ScrollTypes.h"
 #include "platform/testing/RuntimeEnabledFeaturesTestHelpers.h"
 #include "platform/testing/URLTestHelpers.h"
 #include "platform/testing/UnitTestHelpers.h"
 #include "platform/wtf/PtrUtil.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebCoalescedInputEvent.h"
+#include "public/platform/WebCursorInfo.h"
 #include "public/platform/WebDisplayMode.h"
 #include "public/platform/WebDragData.h"
 #include "public/platform/WebDragOperation.h"
 #include "public/platform/WebFloatPoint.h"
 #include "public/platform/WebInputEvent.h"
 #include "public/platform/WebKeyboardEvent.h"
 #include "public/platform/WebLayerTreeView.h"
 #include "public/platform/WebMockClipboard.h"
 #include "public/platform/WebSize.h"
 #include "public/platform/WebThread.h"
@@ skipping 2476 matching lines @@
   key_event.windows_key_code = VKEY_DOWN;
   key_event.SetModifiers(WebInputEvent::kAltKey);
   key_event.is_system_key = false;
   key_event.SetType(WebInputEvent::kRawKeyDown);
   EXPECT_EQ(WebInputEventResult::kHandledSystem,
             web_view->HandleInputEvent(WebCoalescedInputEvent(key_event)));
   key_event.SetType(WebInputEvent::kKeyUp);
   web_view->HandleInputEvent(WebCoalescedInputEvent(key_event));
 }
 
+class MiddleClickAutoscrollWebWidgetClient
+    : public FrameTestHelpers::TestWebWidgetClient {
+ public:
+  // WebWidgetClient methods
+
+  void DidChangeCursor(const WebCursorInfo& cursor) override {
+    last_cursor_type_ = cursor.type;
+  }
+
+  int GetLastCursorType() const { return last_cursor_type_; }
+
+ private:
+  int last_cursor_type_ = 0;
+};
+
+TEST_P(WebViewTest, MiddleClickAutoscrollCursor) {
+  MiddleClickAutoscrollWebWidgetClient client;
+  RuntimeEnabledFeatures::SetMiddleClickAutoscrollEnabled(true);
+  RegisterMockedHttpURLLoad("content-width-1000.html");
+
+  WebViewBase* web_view = web_view_helper_.InitializeAndLoad(
+      base_url_ + "content-width-1000.html", nullptr, nullptr, &client);
+  web_view->Resize(WebSize(100, 100));
+  web_view->UpdateAllLifecyclePhases();
+  RunPendingTasks();
+
+  WebMouseEvent mouse_event(WebInputEvent::kMouseDown,
+                            WebInputEvent::kNoModifiers,
+                            WebInputEvent::kTimeStampForTesting);
+  mouse_event.button = WebMouseEvent::Button::kMiddle;
+  mouse_event.SetPositionInWidget(1, 1);
+  mouse_event.click_count = 1;
+
+  // Start middle-click autoscroll.
+  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));
+  mouse_event.SetType(WebInputEvent::kMouseUp);
+  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));
+
+  EXPECT_EQ(MiddlePanningCursor().GetType(), client.GetLastCursorType());
+
+  LocalFrame* local_frame =
+      ToWebLocalFrameBase(web_view->MainFrame())->GetFrame();
+
+  // Even if a plugin tries to change the cursor type, that should be ignored
+  // during middle-click autoscroll.
+  web_view->GetChromeClient().SetCursorForPlugin(WebCursorInfo(PointerCursor()),
+                                                 local_frame);
+  EXPECT_EQ(MiddlePanningCursor().GetType(), client.GetLastCursorType());
+
+  // End middle-click autoscroll.
+  mouse_event.SetType(WebInputEvent::kMouseDown);
+  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));
+  mouse_event.SetType(WebInputEvent::kMouseUp);
+  web_view->HandleInputEvent(WebCoalescedInputEvent(mouse_event));
+
+  web_view->GetChromeClient().SetCursorForPlugin(WebCursorInfo(IBeamCursor()),
+                                                 local_frame);
+  EXPECT_EQ(IBeamCursor().GetType(), client.GetLastCursorType());
+}
+
 static void ConfigueCompositingWebView(WebSettings* settings) {
   settings->SetAcceleratedCompositingEnabled(true);
   settings->SetPreferCompositingToLCDTextEnabled(true);
 }
 
 TEST_P(WebViewTest, ShowPressOnTransformedLink) {
   FrameTestHelpers::WebViewHelper web_view_helper;
   WebViewBase* web_view_impl = web_view_helper.Initialize(
       nullptr, nullptr, nullptr, &ConfigueCompositingWebView);
 
@@ skipping 1746 matching lines @@
   EXPECT_FALSE(frame_view->VisualViewportSuppliesScrollbars());
   if (RuntimeEnabledFeatures::RootLayerScrollingEnabled()) {
     EXPECT_NE(nullptr,
               frame_view->LayoutViewportScrollableArea()->VerticalScrollbar());
   } else {
     EXPECT_NE(nullptr, frame_view->VerticalScrollbar());
   }
 }
 
 }  // namespace blink